Shimano Dura-Ace R9170 Di2 Groupset


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Shimano Dura-Ace R9170 Di2 Groupset

The Shimano Dura-Ace R9170 Di2 Groupset provides the pinnacle of drivetrain performance. Designed and engineered to provide the most exceptional power transfer efficiency for World Tour riders, to help them achieve the ultimate victory. Shimano has cut no corners with this Di2 groupset, which is virtually unmatched in terms of efficiency, technology and podium-proven performance.

Shimano Dura-Ace Hydraulic Disc Brake Performance

This groupset is also equipped with among the most advanced hydraulic disc brakes in the industry. For many years Shimano has been pushing the development of disc brake technology for mountain bikes, now this exceptional brake feel, modulation and superior braking power is available on road bikes.

Maintenance-Free Drivetrain Performance

The power and precision of Di2 is unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly.

Synchro Shift Electronic Gear Shifting

For the first time in a Dura-Ace groupset, Shimano’s innovative Synchro Shift is now available as a programmable Di2 option; Synchro Shift creates an intuitive experience with synchronised front and rear shifting, which can be custom programmed. With ‘full’ and ‘semi’ Synchro Shift available, this intuitive new mode automatically reacts when you shift from one chainring to another. Remove the guess work as your rear derailleur shifts automatically to minimise the gear step so you can keep riding with a smooth cadence and rhythm.

Reliable Gear Shifting Precision

The Di2 E-Tube system provides unmatched shift performance, reliability and rider customisation. Along with enhanced Di2 functionality, the front and rear Di2 derailleurs are connected via Shimano’s small EW-WU111 wireless unit allowing for an ANT Private connection between Dura-Ace R9100 and third party devices. These components can be connected to Shimano´s E-Tube software, which supports the programmable aspects of the Di2 electronic gear shifting system. Use the Bluetooth technology for seamless access on smartphones and tablets.

Shimano Dura Ace 11 Speed R9170 Di2 Drop Bar Levers:

Drop bar STI with shift buttons

Ergonomic design with greater reach

More controllable and confidence inspiring in race conditions

Carbon composite plastic material hood

Customise the shifts to suit your riding style

More defined click feeling and ergonomic shift lever position

Updated internal shifting unit

Optimally balanced hydraulic brake system for racing

Powerful and controllable braking system

Multi-shift function

Tuneable Reach and Free-Stroke adjustment

Weight: 180g (per lever)

Shimano Dura Ace R9170 Hydraulic Disc Brake Calipers:

Sleek, Low-profile design

Optimally balanced hydraulic brake system for racing

Simple set up and maintenance

Easy and clean one-way bleeding process

ICE Technologies Freeza for advanced heat dissipation

Wide pad clearance and chamfer of brake pads

Improved braking efficiency and power

Balance weight, stiffness and stopping power

Weight: 130g

Shimano Dura Ace R9150 2×11 Speed Di2 Front Derailleur:

Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D.

Di2 Optimised

Precise and accurate shifting

Quick and smooth front shifting under high pedalling torque

Fast and Smooth engagement

Auto-Trim that centres the front derailleur as you shift across the rear cassette, avoiding chain rub

Syncronised Shift Technology to communicate with Rear Derailleur to optimise performance

Low-profile design

2×11 Speed

Weight: 104g

Shimano Dura Ace R9150SS 11 Speed Di2 Rear Derailleur:

Derailleur contains a saver (fuse) function

Low-profile design

Di2 Optimised

Shadow RD Technology

Syncronised Shift Technology to communicate with Front Derailleur to optimise performance

High tolerance cold forged aluminium link plates and body construction

Four self-lubricating micro-machined fluorine-coated link pivot bushings

11 Speed Compatible

Weight: 104g

Shimano Dura Ace R9100 2×11 Speed Chainset:

New 4-arm design for stiff, lightweight performance

Weight reduction without any sacrifice to structural integrity or performance

Hollowtech II construction

Hollowglide chainrings

11 Speed Compatible

Bolt Circle Diameter (B.C.D): 110mm

Compatibility: Frames with O.L.D. 135 / 142 mm and 410mm chainstay length

Shimano Dura Ace CS-9100 Cassette:

For use with 11 Speed HG-EV chains

Advanced, optimised shifting performance

Shimano Dura Ace 11 Speed HG-901 Chain:

Sil-Tec surface treatment technology (PTFE plating)

Zinc-Alloy plated outer links

5.62mm chain width

Shimano Di2 E-tube Electric Wires:

300mm x 1

350mm x 2

600mm x 1

700mm x 1

1000mm x 1


SM-EW90-A E-tube Di2 Junction Box-A, 3 port and the M-JC41 E-tube, Di2 bottom bracket Junction for internal wire routing

Di2 internal mount battery


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